HFSS Training__Optimetrics(TM) Suspended Stripline Transform
Class Lab III: Optimization Analysis
Suspended Stripline
Transformer
Substrate/superstrate:
Air, 50 x 100 x 10 mm
total
Input line: 5 mm x 20
mm
Output line: 20 mm x 30
mm
Initial transformer
section: 40 mm x 50 mm
Build Initial Project
Set Up all Variables
Set Up Parametric Table
Run Optimization Analysis
OptimetricsTM Lab: Create
Parametric Project
In Maxwell Project
Manager, select New...
Give Project a Name
(‘striptx’)
Make sure Type is set to
“Ansoft Parametric/
Optimization Module”
Optimization “Project”
(really a group of HFSS
or other analysis
projects) will have own
directory structure in
disk storage
(“striptx.pjt”)
OptimetricsTM Lab: Create Nominal
Project
From OptimetricsTM
Executive Window, select
Create... for Nominal Project
Interface Prompts you for
name and type of Nominal
Project
Use name ‘nominal’ for
simplicity. Project type
should be HFSS.
Note that availability of
“Type” options beyond
HFSS will only be
enabled if ot
h
er
compatible Ansoft
products loaded on
same system
OptimetricsTM Lab: Nominal
Geometry Macro
In HFSS interface, go to
Draw.
IMPORTANT: Begin
recording all subsequent
drawing steps as a macro!!
Under File, Select
Macro→Start Recording
Place macro in default
location specified
Macro must be named
“mod3.mac”
Now Proceed with Drawing
steps as normal. Your
actions will be recorded.
OptimetricsTM Lab: Nominal
Geometry
Create stripline superstrate
and substrate objects as
Boxes from origin, with
dimensions of (50, 100, 5) and
(50, 100, -5) mm, respectively
May want to ‘Fit Views’ to
enhance visibility
Create input line from origin
with dimensions (5, 20) mm
Create center line from origin
with dimensions (40, 50) mm
Create output line from origin
with dimensions (20, 30) mm
Stop Macro Recording,
before you Exit Draw.
OptimetricsTM Lab: Launch Macro
Editor
Geometric Variable
definition is
achieved by editing
the steps from the
Draw session
saved in the
“mod3.mac” macro
Access the on
-
board Macro Editor
directly from the
File Menu
OptimetricsTM Lab: Define Geometry
Variables
We will need variables for the length
and width of the center strip, and the
length of the input and output strip (to
make sure strips remain in contact)
Under Edit menu, select “All
Parameters”. List is initially blank.
Add the following to the list:
clength=50
cwidth=40
inlength=20
sumlength=inlength+clength
(will identify starting point for center strip)
outlength=100-sumlength
(will identify ending point for center strip)
OptimetricsTM Lab: Assign
Geometry Variables to Macro
Macro Editing is Point-and-Click!
Select a command in window at left...
...and right window pro
vides list
of editable options. Simply enter
variable names over nominal
values entered during drawin
g
session!
OptimetricsTM Lab: Geometry
Variable Assignment, cont.
Replace Y dimension of input
line with “inlength”
Replace Y starting coordinate of
center line with “inlength”
Replace center line X and Y
dimensions with “cwidth” and
“clength”
Replace Y starting coordinate of
output line with “sumlength”
Replace Y dimension of output
line with “outlength”
Final Macro shown at left
OptimetricsTM Lab: Nominal Material
Setup
Assign both superstrate and
substrate boxes to ‘vacuum’
Note that assignment of a variable
material constant for use with
optimization analysis would be done
at this time via ‘Functional’ material
interface.
Example: For substrate, create new
material, and make Permittivity a
function via Options... button.
Define Function called “permittivity”
and give it a value of 1.
Enter “permittivity” over ‘undefined’
for substrate material parameter
OptimetricsTM Lab: Nominal
Boundary Setup Assign port
boundaries to each
end of geometry
Remember to select
both substrate and
superstrate end
faces!
Assign Symmetry
(perfect_h case) to
appropriate face
Assign perfect_e
condition to 2D
rectangles to
represent trace
metalization
部分文件列表
| 文件名 |
大小 |
| HFSS_Training__Optimetrics(TM)_Suspended_Stripline_Transform.pdf |
298K |
全部评论(0)